Router Limits 100/150/160
1. Double check you're entering the MAC/ID correctly. (Valid numbers for the MAC address range from 0-9, and valid letters range from A-F.)
2. If you still get this error, please contact support as your router may already be registered. Please provide the following information in the email: name, phone number, MAC address and purchase location.
Router Limits Mini
Please see: installing the mini
Other Router Limits Enabled Hardware
You can find the pairing code under the Router Limits section of the routers UI